公开(公告)号：US5450568A

公开(公告)日：1995-09-12

申请号：US668257

申请日：1991-03-12

申请人： Miyuki Saji ,  Michiru Yamabe ,  Chisato Konno ,  Nobuhiro Ioki

发明人： Miyuki Saji ,  Michiru Yamabe ,  Chisato Konno ,  Nobuhiro Ioki

IPC分类号： G06F9/06 ,  G06F17/13 ,  G06F17/50 ,  G06F15/328

CPC分类号： G06F17/13 ,  G06F17/5018 ,  G06F2217/16

摘要： A program generating method for automatically generating a program used in a simulation of a physical phenomenon by using computers, wherein inputted information such as the shape of a domain where the physical phenomenon such as that in a fluid takes place, mesh division information therefor, a partial differential equation dominantly representing the physical phenomenon and boundary conditions thereof are inputted, differential operators included in the inputted partial differential equation and an equation representing the boundary condition are expanded to generate discrete equations and the generated discrete equations are coded to automatically generate simulation programs. Information indicating whether discrete points which are evaluation points of the values of variables included in the inputted partial differential equation are located at mesh points or at intermediate points between mesh points is inputted the relative positional relations between mesh points and the discrete points of the variables, and relative discrete equations are generated in accordance with the inputted information by discretizing the differential operators included in the partial differential equation by using a conversion table or a conversion program, where the position of a variable to be solved in the partial differential equation is designated as a reference point relative discrete equations are converted to discrete equations for an absolute position in the region where the physical phenomenon takes place, thereby generating the simulation program.

摘要翻译： 一种用于通过使用计算机自动生成用于仿真物理现象的程序的程序生成方法，其中输入诸如流体中的物理现象的领域的形状的信息，网格划分信息， 输入主要表示其物理现象和边界条件的偏微分方程，扩展输入的偏微分方程中包含的微分算子和表示边界条件的方程，生成离散方程，生成的离散方程被编码以自动生成模拟程序。 指示作为输入偏微分方程中包含的变量的值的评价点的离散点是否位于网格点或网格点之间的中间点的信息被输入到网格点和变量的离散点之间的相对位置关系， 并且通过使用转换表或转换程序离散包含在偏微分方程中的微分算子，根据输入的信息生成相对离散方程，其中将偏微分方程中待求解的变量的位置指定为 参考点相对离散方程被转换为离散方程，用于在发生物理现象的区域中的绝对位置，从而产生模拟程序。

公开(公告)号：US5265040A

公开(公告)日：1993-11-23

申请号：US593568

申请日：1990-10-10

申请人： Miyuki Saji ,  Chisato Konno ,  Yukio Umetani

发明人： Miyuki Saji ,  Chisato Konno ,  Yukio Umetani

IPC分类号： G06F17/13 ,  G06F17/50 ,  G06F15/20

CPC分类号： G06F17/13 ,  G06F17/5018 ,  G06F2217/16

摘要： In a numerical simulation system, a method for displaying information includes the steps of generating output data of values which are dependent on at least one of coefficients and constants of a discretization equation at each mesh point, based on positions of the mesh points representing the analysis domain and having the partial differential equation defined therefor and simultaneous linear equations constructed by the discretization equations which are approximation equations of the partial differential equations; displaying the analysis domain on a display; and changing the display status of the display screen at the point corresponding to the mesh point depending on the output data at the mesh point.

摘要翻译： 在数值模拟系统中，用于显示信息的方法包括以下步骤：基于表示分析的网格点的位置，生成依赖于每个网格点处的离散化方程的系数和常数中的至少一个的值的输出数据 并具有为此定义的偏微分方程和由偏微分方程组成的同时线性方程，其为偏微分方程的近似方程; 在显示屏上显示分析域; 并且根据网格点处的输出数据在与网格点对应的点处改变显示屏幕的显示状态。

公开(公告)号：US5129035A

公开(公告)日：1992-07-07

申请号：US361283

申请日：1989-06-05

申请人： Miyuki Saji ,  Chisato Konno

发明人： Miyuki Saji ,  Chisato Konno

IPC分类号： G06F9/06 ,  G06F9/45 ,  G06F17/13 ,  G06F17/50

CPC分类号： G06F17/13 ,  G06F17/5018 ,  G06F2217/16

摘要： Method for generating a program for numerically solving a partial differential equation, wherein when a numerical calculation program for calculating, in a specified analytic domain, the value of a physical quantity defined by a partial differential equation is automatically produced, it is judged on the basis of predetermined conditions whether or not discretization due to the divergence of an operand is to be carried out for each of terms which are included in the partial differential equation and have a differential operator, and the discretization due to the divergence of the operand is carried out for a term when it is judged that the term is to be discretized on the basis of the divergence of the operand.

摘要翻译： 一种用于产生用于数值求解偏微分方程的程序的方法，其中当在指定分析域中计算由偏微分方程定义的物理量的值的数值计算程序被自动产生时，基于 对于包含在偏微分方程中的每个术语，要对操作数的发散性进行离散化是否具有预定条件，并且具有差分算子，并且执行由于操作数的发散而产生的离散化 当判断该术语将根据操作数的发散离散化时的术语。

公开(公告)号：US4841479A

公开(公告)日：1989-06-20

申请号：US16406

申请日：1987-02-19

申请人： Michiru Tsuji ,  Chisato Konno ,  Miyuki Saji

发明人： Michiru Tsuji ,  Chisato Konno ,  Miyuki Saji

IPC分类号： G06F9/06 ,  G06F9/44 ,  G06F17/13 ,  G06F17/16 ,  G06F17/50

CPC分类号： G06F8/30 ,  G06F17/13 ,  G06F17/5018 ,  G06F9/455 ,  G06F2217/16 ,  G06F2217/74

摘要： A method for automatically generating by use of a computer a simulation program for simulating a phenomenon in a region by discretizing automatically data of a partial differential equation inputted when the partial differential equation and boundary conditions governing the phenomenon and data representing the shape of a region, which is an object of calculation, are given, by using a discretization rule by the finite differential method, and for generating a program calculating numerical values representative of the phenomenon determined by the partial differential equation over the whole object region of calculation by the finite differential method on the basis of the equation after the discretization, wherein the object region of calculation is divided into a plurality of blocks, each of which has the same differential equation and the same discretization rule and a program is generated which calculates, for each of the blocks numerical values representative of the phenomenon determined by the partial differential equation and the discretization rule both applied for each of the blocks by the finite differential method.

摘要翻译： 一种用于通过使用计算机自动生成用于模拟区域中的现象的仿真程序的方法，所述仿真程序通过离散化自动数据的偏微分方程输入，当偏微分方程和控制现象的边界条件和表示区域的形状的数据时， 通过使用有限微分方法的离散化规则给出计算的对象，并且通过有限差分生成表示由偏微分方程在整个对象区域上确定的现象的程序的程序的程序 方法，其中计算对象区域被划分为多个块，每个块具有相同的微分方程和相同的离散规则，并且生成程序，其针对每个块计算 阻止代表现象的数值 由偏微分方程和离散化规则两者都通过有限差分法应用于每个块。

公开(公告)号：US06928402B2

公开(公告)日：2005-08-09

申请号：US09748390

申请日：2000-12-27

申请人： Shirun Ho ,  Miyuki Saji ,  Sigeo Ihara ,  Satoshi Ito

发明人： Shirun Ho ,  Miyuki Saji ,  Sigeo Ihara ,  Satoshi Ito

IPC分类号： H01L29/00 ,  G06F9/45 ,  G06F9/455 ,  G06F17/50 ,  G06F19/00 ,  H01L21/3065 ,  H01L21/82

CPC分类号： G06F17/5022

摘要： Values of input parameters are set. Simulations are executed in parallel for individual sets of input parameters by a plurality of processors to obtain design values which are execution results. The obtained design values are compared with the design condition. Directory files are constructed for plural kinds of input parameters corresponding to design values satisfying the design condition. Accumulative distribution in the distribution of parameter input values are determined in respect of the individual kinds of input parameters. Input values of parameters to be referred are extracted on the basis of values of the accumulative distribution every kind of input parameter. The kind of input parameter, the extracted input values and the number of the extracted input values are displayed through an input interface every kind of input parameter.

摘要翻译： 输入参数的值被设置。 通过多个处理器对各组输入参数并行执行模拟，以获得作为执行结果的设计值。 将获得的设计值与设计条件进行比较。 目录文件被构造成与满足设计条件的设计值对应的多种输入参数。 参数输入值分布中的累积分布是针对各种输入参数确定的。 基于各种输入参数的累积分布的值来提取要参考的参数的输入值。 通过输入接口显示输入参数的类型，提取的输入值和提取的输入值的数量，每种输入参数。